AI Tools Directory
Every AI tool we've reviewed for World of AI: what it does, what it really costs, and who it's for. We write each review from the tool's official site and docs, and nobody pays to be listed.
36 tools · Updated November 13, 2026
Chatbots and assistants
Our pick: ChatGPT if you want one app for everything, Claude if you mostly write or code.
ChatGPT
OpenAI's all-round assistant for chat, research, images, voice and coding.
Free · Plus $20/mo
Claude
Anthropic's assistant for writing, analysis and coding, with Claude Code.
Free · Pro from $17/mo
Google Gemini
Google's assistant across Android, Chrome, Gmail and Docs.
Free · AI Pro $19.99/mo
Microsoft Copilot
Free AI chat, plus Copilot in Word, Excel and Outlook with Microsoft 365.
Free · M365 from $9.99/mo
Perplexity
AI search that answers with cited sources.
Free · Pro $17/mo annual
Grok
xAI's assistant, sold in the X Subscription with Cursor and X Premium.
Free · from $8/mo
DeepSeek
A capable free chat app with web search and Deep-Think mode.
Free
Meta AI
Meta's free assistant in WhatsApp, Instagram, Facebook and its own app.
Free · Meta One from $7.99/mo
Character.AI
Chat and role-play with AI characters. 18+ for open-ended chat.
Free · c.ai+ $94.99/yr
Coding and app building
Our pick: Cursor if you write code yourself, Lovable if you don't.
Cursor
AI code editor with parallel cloud agents and Bugbot reviews.
Free · from $8/mo
GitHub Copilot
AI pair programmer in VS Code, JetBrains, the CLI and GitHub.
Free · Pro $10/mo
Lovable
Build and host web apps from plain-English prompts.
Free · Pro from $25/mo
Paradev
Run several coding agents in parallel, each in its own Git worktree.
Free
Zellij
Terminal workspace that flags which agent is waiting on you.
Free · open source
Project OS
Task files and PM, developer and QA roles for Claude Code and Codex.
Free · MIT
Writing and productivity
Our pick: Gemini Notebook for research (it's free), Otter.ai for meetings.
Notion AI
Agents, meeting notes and search built into Notion.
Business $20/member/mo
Grammarly
Grammar, tone and rewrites wherever you type.
Free · Pro $12
Gamma
Presentations, docs and simple websites from a prompt.
Free · paid by credits
Gemini Notebook
Google's research tool formerly called NotebookLM.
Free
Otter.ai
Live meeting transcription, summaries and action items.
Free · Pro $8.33/mo annual
Image and design
Our pick: Midjourney for the best-looking images, Canva AI when you need a finished design.
Voice and audio
Our pick: ElevenLabs for voices, Suno for music.
Agents and agent infrastructure
Our pick: Nod if you want an agent for yourself, OpenSandbox if you're building one.
Nod by n8n
A personal agent for errands across your apps, asking before it acts.
Free · Apache 2.0
ZeroClaw
A self-hosted agent in one Rust binary, on 30+ chat channels.
Free · open source
OpenSandbox
Isolated sandboxes for agents to run code safely.
Free · Apache-2.0
AWS Emulator
Local, offline AWS so agents can test cloud code.
Free
Developer APIs and local models
Our pick: llama.cpp to run models on your own machine.
Gemini Decisions API
Fast yes/no and multiple-choice calls, scored instead of written.
$0.10/1M input · free output
DeepSeek App API
Search, files and voice for AI apps on one API key.
Search $0.75/1K requests
llama.cpp
The engine behind local AI, now at 1.0.
Free · open source
Edge0-145B
A 145B open model built to run on one high-end GPU.
Free for personal use
Common questions
What is the best AI chatbot?
It depends on what you do. ChatGPT is the most complete all-rounder, Claude is strongest for writing and coding, Gemini is best inside Google's apps, and Perplexity is best when you need cited sources.
What are the best free AI tools?
ChatGPT, Claude, Gemini, Perplexity, DeepSeek and Meta AI all have useful free plans. For developers, Paradev, Zellij, OpenSandbox, AWS Emulator, ZeroClaw and llama.cpp are free and open source or free to use.
What is the best AI tool for coding?
Cursor and GitHub Copilot are the most popular AI coding tools, Claude includes Claude Code on paid plans, and Lovable builds whole apps from prompts without coding.
How often is this directory updated?
We add tools as they're featured in the World of AI newsletter every weeknight and recheck pricing on official sites when we update a review.
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